﻿using Ch9RSS_Universal.Data;
using Ch9RSS_Universal.Common;

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using System.Windows.Input;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Ch9_Portable.ViewModels;
using Ch9_Portable.HTMLHelpers;
using Ch9_Portable.Models;
using Ch9RSS_Universal.Converters;

namespace Ch9RSS_Universal
{
    /// <summary>
    /// A page that displays an overview of a single group, including a preview of the items
    /// within the group.
    /// </summary>
    public sealed partial class SectionPage : Page
    {
        private NavigationHelper navigationHelper;
        private GroupToMediaConverter groupToMedia = new GroupToMediaConverter();
        public SectionPage()
        {
            this.InitializeComponent();
            this.DataContext = App.SectionVM;
            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += this.NavigationHelper_LoadState;
        }

        private SectionViewModelBase viewModel { get { return (SectionViewModelBase)this.DataContext; } }
        
        private void itemGridView_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems != null & e.AddedItems.Count == 1)
            {
                itemContentView.NavigateToString(CSSValues.WinValue + ((Ch9Item)e.AddedItems[0]).description);
                itemContentView.Opacity = 1;

                sidePlayer.Source =new Uri(groupToMedia.Convert(((Ch9Item)e.AddedItems[0]).group, 
                                                                typeof(String), 
                                                                null, 
                                                                "EN-en").ToString());
            }
            else
            {
                itemContentView.Opacity = 0;
            }
        }
        private void PushNavigationToIE(WebView sender, WebViewNavigationStartingEventArgs args)
        {
            if (args.Uri != null)
            {
                args.Cancel = true;
                Windows.System.Launcher.LaunchUriAsync(args.Uri);
            }
        }

        private void sidePlayer_IsFullScreenChanged(object sender, RoutedPropertyChangedEventArgs<bool> e)
        {
            if (e.NewValue)
            {
                Grid.SetRow(sidePlayer, 0);
                Grid.SetColumn(sidePlayer, 0);
                Grid.SetRowSpan(sidePlayer, 3);
                Grid.SetColumnSpan(sidePlayer, 3);
                sidePlayer.Margin = new Thickness(0, 0, 0, 0);
            }
            else
            {
                Grid.SetRow(sidePlayer, 1);
                Grid.SetRowSpan(sidePlayer, 1);
                Grid.SetColumn(sidePlayer, 1);
                Grid.SetColumnSpan(sidePlayer, 1);
                sidePlayer.Margin = new Thickness(39, 20, 20, 20);

            }
        }

        /// <summary>
        /// Gets the NavigationHelper used to aid in navigation and process lifetime management.
        /// </summary>
        public NavigationHelper NavigationHelper
        {
            get { return this.navigationHelper; }
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="sender">
        /// The source of the event; typically <see cref="NavigationHelper"/>
        /// </param>
        /// <param name="e">Event data that provides both the navigation parameter passed to
        /// <see cref="Frame.Navigate(Type, object)"/> when this page was initially requested and
        /// a dictionary of state preserved by this page during an earlier
        /// session.  The state will be null the first time a page is visited.</param>
        private async void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)
        {
           
        }

        /// <summary>
        /// Invoked when an item is clicked.
        /// </summary>
        /// <param name="sender">The GridView displaying the item clicked.</param>
        /// <param name="e">Event data that describes the item clicked.</param>
        private void ItemView_ItemClick(object sender, ItemClickEventArgs e)
        {
            // Navigate to the appropriate destination page, configuring the new page
            // by passing required information as a navigation parameter
            // var itemId = ((SampleDataItem)e.ClickedItem).UniqueId;
            // this.Frame.Navigate(typeof(ItemPage), itemId);
        }

        #region NavigationHelper registration

        /// <summary>
        /// The methods provided in this section are simply used to allow
        /// NavigationHelper to respond to the page's navigation methods.
        /// Page specific logic should be placed in event handlers for the  
        /// <see cref="Common.NavigationHelper.LoadState"/>
        /// and <see cref="Common.NavigationHelper.SaveState"/>.
        /// The navigation parameter is available in the LoadState method 
        /// in addition to page state preserved during an earlier session.
        /// </summary>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            this.navigationHelper.OnNavigatedTo(e);
        }

        protected override void OnNavigatedFrom(NavigationEventArgs e)
        {
            viewModel.ClearSelectedSeries();
            this.navigationHelper.OnNavigatedFrom(e);
        }

        #endregion

        
    }
}